- owner's keyfob transmits signal to car
- owner's car polls for incoming signal
- owner's car decrypts keyfob signal
- owner's car verifies that the keyfob has a legitimate encrypted key for that vehicle
- owner's vehicle signals the locking routine in the ECU
- owner's ecu flips solenoid for only the drivers side door
- door unlocks
All the above steps are done without the owner having to know about it.
I'm quite sure he is talking human->computer interfaces not computer->computer interfaces.
By your logic, it's simpler to buy something from someone in another country with cash than it is to use PayPal.
- owner's keyfob transmits signal to car
- owner's car polls for incoming signal
- owner's car decrypts keyfob signal
- owner's car verifies that the keyfob has a legitimate encrypted key for that vehicle
- owner's vehicle signals the locking routine in the ECU
- owner's ecu flips solenoid for only the drivers side door
- door unlocks
All the above steps are done without the owner having to know about it.
I'm quite sure he is talking human->computer interfaces not computer->computer interfaces.
By your logic, it's simpler to buy something from someone in another country with cash than it is to use PayPal.